A joint arrangement connects a longitudinal edge of a first component with an upper surface of a second component. At least two cooperating bands are secured with their first ends respectively on opposite sides of the first component, and are secured with their second ends respectively on clamping elements arranged on the second component, so that the bands intersect the major center plane of the first component in the joint area between the components. A pressure element is positioned on at least one clamping element for supporting the first component, and the bands extend laterally next to the pressure element and crosswise relative to one another.
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1. A joint arrangement comprising:
a first component (T4) and a second component (T3), wherein said first component is arranged with a longitudinal border area thereof adjacent to and running in a longitudinal direction along a major surface of said second component;
at least one pressure element (15) which is arranged between and in contact with both said longitudinal border area of said first component and said major surface of said second component, so as to thereby support said first component on said second component through said at least one pressure element, whereby next to the pressure element in the longitudinal direction a joint area (FG) is formed extending between said longitudinal border area of said first component and said major surface of said second component;
two clamping elements arranged on the second component; and
at least two cooperating bands (41a, 41b; 42a, 42b; 51a, 51b; 61a, 61b; 71a, 71b), which are secured with first ends (E1) thereof respectively on opposite sides of the first component (T4), and which are secured with second ends (E2) thereof on respectively one of the clamping elements (45, 46; 52a, 52b; 62a, 62b; 72a, 72b) arranged on the second component (T3), in such a manner that the cooperating bands (41a, 41b; 42a, 42b; 51a, 51b; 61a, 61b; 71a, 71b) extend crosswise or transversely relative to one another in the joint area (FG) as seen in an axial direction (R1) of the joint arrangement and next to the pressure element in the longitudinal direction.
11. A joint arrangement comprising:
a first component (T4) and a second component (T3), wherein said first component is arranged with a longitudinal border area thereof adjacent to and running in a longitudinal direction along a major surface of said second component;
at least one pressure element (15) which is arranged between said longitudinal border area of said first component and said major surface of said second component, and which supports said first component relative to said second component, whereby next to the pressure element in the longitudinal direction a joint area (FG) is formed extending between said longitudinal border area of said first component and said major surface of said second component;
two clamping elements arranged on the second component;
at least two cooperating bands (41a, 41b; 42a, 42b; 51a, 51b; 61a, 61b; 71a, 71b), which are secured with first ends (E1) thereof respectively on opposite sides of the first component (T4), and which are secured with second ends (E2) thereof on respectively one of the clamping elements (45, 46; 52a, 52b; 62a, 62b; 72a, 72b) arranged on the second component (T3), in such a manner that the cooperating bands (41a, 41b; 42a, 42b; 51a, 51b; 61a, 61b; 71a, 71b) extend crosswise or transversely relative to one another in the joint area (FG) as seen in an axial direction (R1) of the joint arrangement and next to the pressure element in the longitudinal direction; and
a contact element arranged on a side of the pressure element facing toward the first component (T4), wherein a first side of the contact element facing toward the first component (T4) has a larger radius of curvature than a surface of the first component (T4) facing toward the first side of the contact element, which thereby reduces arising compressive stresses.
13. A joint arrangement comprising:
a first component and a second component, wherein said first component is arranged with a longitudinal edge thereof adjacent to and running in a longitudinal direction along a major surface of said second component, and wherein a joint area is formed between said longitudinal edge of said first component and said major surface of said second component;
at least one pressure element that is arranged in said joint area between and in contact with both said longitudinal edge of said first component and said major surface of said second component, so as to support said first component on said second component through said at least one pressure element, and so as to space apart said first component relative to said second component to form in said joint area an open free passage area next to or between successive portions of said pressure element in said longitudinal direction, and that takes-up and transmits pressure forces between said first and second components;
a first clamping element and a second clamping element that are respectively secured on said major surface of said second component;
a first band that has a first portion thereof secured on a first side of said first component and has a second portion thereof secured between said first clamping element and said second component; and
a second band that has a first portion thereof secured on a second side of said first component opposite said first side, and has a second portion thereof secured between said second clamping element and said second component;
wherein respective third portions of said bands between said first and second portions thereof respectively intersect a major plane of said first component in said joint area, and wherein said third portions of said bands extend through said free passage area in said joint area next to, or between portions of, said pressure element in said longitudinal direction.
18. A joint arrangement comprising:
a first component and a second component, wherein said first component is arranged with a longitudinal edge thereof adjacent to and running in a longitudinal direction along a major surface of said second component, and wherein a joint area is formed between said longitudinal edge of said first component and said major surface of said second component;
at least one pressure element that is arranged in said joint area between said longitudinal edge of said first component and said major surface of said second component, and that supports and spaces apart said first component relative to said second component so as to form in said joint area an open free passage area next to or between successive portions of said pressure element in said longitudinal direction, and that takes-up and transmits pressure forces between said first and second components;
a first clamping element and a second clamping element that are respectively secured on said major surface of said second component;
a first band that has a first portion thereof secured on a first side of said first component and has a second portion thereof secured between said first clamping element and said second component; and
a second band that has a first portion thereof secured on a second side of said first component opposite said first side, and has a second portion thereof secured between said second clamping element and said second component;
wherein respective third portions of said bands between said first and second portions thereof respectively intersect a major plane of said first component in said joint area, and wherein said third portions of said bands extend through said free passage area in said joint area next to, or between portions of, said pressure element in said longitudinal direction; and
wherein said longitudinal edge has a first curved surface facing toward said pressure element, said pressure element has a second curved surface facing toward and contacting said first curved surface of said longitudinal edge of said first component, and said second curved surface has a larger radius of curvature than said first curved surface.
2. The joint arrangement according to
the two cooperating bands include a first band and a second band, the two clamping elements include a first clamping element and a second clamping element, and the opposite sides of the first component include opposite first and second sides;
the first band has a first portion thereof secured on the first side of the first component and has a second portion thereof secured between the first clamping element and the second component;
the second band has a first portion thereof secured on the second side of the first component opposite the first side, and has a second portion thereof secured between the second clamping element and the second component; and
respective third portions of the bands between the first and second portions thereof respectively intersect a major plane of the first component in the joint area (FG), and the third portions of the bands extend through the joint area laterally next to, or between portions of, the pressure element.
3. The joint arrangement according to
4. The joint arrangement according to
5. The joint arrangement according to
6. The joint arrangement according to
7. The joint arrangement according to
8. The joint arrangement according to
9. The joint arrangement according to
10. The joint arrangement according to
12. The joint arrangement according to
14. The joint arrangement according to
15. The joint arrangement according to
16. The joint arrangement according to
17. The joint arrangement according to
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This application is a Continuation of U.S. application Ser. No. 10/502,559 with a US National Stage date of Mar. 2, 2005, which is a 35 USC 371 US National Stage of PCT International Application PCT/DE2003/000143 filed on Jan. 20, 2003, and which issued as U.S. Pat. No. 7,451,950 on Nov. 18, 2008. The entire disclosure of the above referenced applications is incorporated herein by reference.
The invention relates to a joint for a component-arrangement, in which a longitudinal side of a first component faces toward an upper surface of a second component, as well as a flexible band for use for such a joint.
For improving the aerodynamic characteristics of wings, concepts for a wing with a variable profile that is adjustable via control mechanisms are known from the general state of the art. These mechanisms are known from the general state of the art. These concepts, however, use relatively many movable parts and joints, which mean a high effort and expense with respect to their fabrication and assembly.
For example, the U.S. Pat. No. 4,349,169 discloses a lifting wing with a profile that is variable by means of an actuator drive. Drive rods of the actuator drive are connected by means of joints with the structure of the lifting wing, whereby the axial direction of the joints extends in the span direction. Thereby, a profile variation is indeed possible, if plural actuator drives with corresponding operating rods are arranged one behind another as seen in the span direction. The profile shape variation disclosed therein, however, is achieved over the entire span direction in this arrangement.
Furthermore, from the EP 860 355, there is disclosed an aerodynamic component with variable camber, which is formed of articulately supported ribs with an outer belt and several stiffening struts that have a constant length and that engage on this outer belt. For deforming the component, the stiffening struts are operated by actuators in such a manner so that the stiffening struts move in the rib longitudinal direction or flow direction.
From the DE 28 07 648 C2, a foldable wall is known, with wall parts connected with one another through a fabric joint. The fabric joint is a band that is provided with a rim or edge rib on its longitudinal edges. The edge rib is held in a groove extending longitudinally along the side face of the wall part with a corresponding recess that is wider relative to the groove.
The object of the invention is to provide a joint that is simply constructed and simply installable, and represents an alternative to the presently utilized joints.
This object is achieved with the characterizing features of the independent patent claims. Further embodiments are set forth in the dependent claims.
According to the invention there is provided a joint for the connection of a longitudinal side of a first component with an upper surface of a second component with at least two cooperating bands, which are secured with their first ends E1 respectively on different sides lying opposite one another of the first component, and which are secured with their second ends E2 on respectively one clamping element arranged on the second component in such a manner, so that these intersect the longitudinal center axis of the first component in opposite directions in the area between the components, with a pressure element for supporting the first component positioned on at least one clamping element, whereby the bands extend laterally next to the pressure element and crosswise or transversely relative to one another as seen in the axial direction. The bands can be formed of at least two plies of a fiber-reinforced composite material or a different synthetic plastic or a textile material. The bands can extend in their longitudinal direction at an angle β relative to the axial direction of the structure-joint, whereby the angle β amounts to not equal to 90 degrees for taking up the shear forces to be transmitted through the joint. The bands can be secured between a clamping element and the second component.
In the following, the invention is described in connection with the accompanying figures. It is shown by:
Flexible joint-bands or bands or flexible straps or belt elements that are constructed of at least two layers or plies of a material, whereby the layers or plies are not fixed with one another in the free joint area FG, are used for the inventive joints for the jointed or articulated connection of two components that are movable relative to one another. In the following, that area or region that lies between the components that are connected with one another, is understood as the free joint region or area FG. The free joint area FG is also that area of the bands, at which the bands of the joint do not lie in contact on the components in each of the prescribed positions thereof. In contrast, each flexible band provided according to the invention comprises a fixed area or region B, at which the band is secured to the respective component or is fixedly connected therewith. Areas or regions can also be included on these bands, which indeed lie in contact on the component or the components, but which are not fixed or secured thereto.
The inventive joint is a structure-joint, because it can be formed, in its sub-parts, of materials that comprise similar characteristics as the components that are connected with this, so that the behavior of the joint corresponds to the behavior of the components even under the influence of forces or under tensions or stresses.
A fiber-reinforced composite (FRC) material or a different synthetic plastic or a textile material or woven web is especially provided as the material for the bands used according to the invention. The provided bands are formed of at least two plies of the above referenced material. The plies are not fixed to one another in the area FG, thus in the region between the components T3, T4 that are to be connected with the joint, in order to keep the shear forces FS of the arising shear force path or course V-FS as small as possible (
In the
According to the invention, there is provided a joint connection for the connection of a longitudinal side of a first component T4 with an upper surface of a second component T3 with at least two cooperating bands, which are secured with their first ends E1 respectively on different sides lying opposite one another of the first component T4, and which are secured with their second ends E2 on respectively one clamping element arranged on the second component T3 in such a manner, so that the paths thereof in relation to a longitudinal center axis A of the first component T4 extend opposite one another or these intersect the longitudinal center axis A of the first component in opposite directions in the area between the components, with a pressure element positioned on at least one clamping element for supporting the first component T4, whereby the bands extend crosswise or transversely relative to one another as seen in the axial direction R1 and laterally next to the pressure element. Especially, the components, in interaction with the at least one pressure element, form, laterally adjacent thereto, a free joint area FG or two free joint areas, in which the bands respectively extend from one to the other component. Thereby, the bands can be arranged on one side of the pressure element or respectively one on both sides thereof. Preferably, two pressure elements are provided, in order to achieve a stable support of the pertinent component T4.
The bands can extend in their longitudinal direction at an angle β relative to the axial direction R1 of the structure-joint, whereby the angle β can especially amount to not equal to 90 degrees for taking up shear forces to be transmitted through the joint.
The joint or joint arrangement 40 shown in
The extension or path of the bands is as follows in the illustrated example embodiment: Each flexible band 41a, 41b or 42a, 42b extends from a first side of the component T4—for example the side 47—into the area between the component T3 and the clamping element that lies next to the component T4, and particularly on the side lying opposite to the first side of the component T4—thus in the example next to the side 48. From there, the flexible band extends around along the side of the clamping element 45 facing away from the component T4, onto the free side of the clamping element facing away from the component T3, where the band is preferably secured. To each flexible band, at least one further flexible band is arranged, which is laid from the component T4 around the clamping element opposite the described path. The kinematics in this arrangement dependent on the angles α and β are illustrated in
Particularly, the abovementioned relationships are given by
p=t*sin β
S=Σt*cos β
F=Σt*sin ∝*sin β
Various different alternatives for the course or path of the bands and the positions of the clamping elements relative to the component T4 are illustrated in the
The respectively illustrated component T4 is oriented in its neutral position with its crosswise or transverse planar direction R3 angularly on the upper surface of the component T3. In
The clamping elements, together with the bands, are preferably secured by means of connection elements on the component T3. A pressure element 15 is arranged in such a manner on one clamping element or on both clamping elements (
The two flexible bands 51a, 51b secured on the component T4 are used in the embodiment according to the
The respective band, beginning from the component T4, after extending through the free joint area FG, can be guided between the component T3 and either the first clamping element 52a or the second clamping element 52b, respectively, in order to then be secured on the free upper surface of the pertinent clamping element 52a or 52b respectively. Beginning from one side of the component T4, each band runs or extends through the free joint area FG up to the component T3, and crosses the longitudinal center axis A of the component T4 while extending through the free joint area FG. From there, the band extends around the cross-section of one clamping element, and in fact at first through between the two clamping elements, and then at least partially into the area between one of the clamping elements and the component T3, and preferably around the free outer side of the same clamping element up to a prescribed portion of the free outer side of the same clamping element.
Each band is guided through an area that is kept free or clear of the two clamping elements to form a passage D. The position of this kept-free or clear area is positioned either in the area of the cross-section of the extension of the component T4 in the direction toward the component T3 (
The securing of the pertinent band on its first end E1 on the component T4 is carried out in various different ways according to the state of the art. The band can be adhesively bonded or secured by means of connection elements on the component T4.
The fixing or securing of the bands on the component T3 can be achieved according to the state of the art, thus for example through adhesive bonding, through securing elements, or through a melting fusion of the materials of the respective band with the respective component.
Preferably, the securing of the bands on their second end E2 on the respective clamping element is achieved by means of connection elements. In the
Preferably, a hollow space H is provided in the first clamping element 52a or 62a or 72a, through which the first connection element 54a extends. The hollow space H is advantageously open to the component T3. Through the hollow space H, during tightening of the first connection element 54a, the first clamping element 52a or 62a or 72a is lengthened or stretched in the transverse direction R2 of the clamping element, thus in the longitudinal direction of the band, in order to stress or tension the pertinent band.
Advantageously, a second connection element 54b is provided close to the free joint area FG or close to the component T4. This second connection element 54b extends—like the first connection element 54a—through the component T3, through an area of the flexible band positioned between the first clamping element 52a or 62a or 72a and the component T3, through the first clamping element as well as through an area of the band positioned on the outer side 57a of the clamping element. A corresponding bored hole is arranged in the first clamping element 52a or 62a or 72a for receiving second connection element 54b.
The second clamping element 52b or 62b or 72b is secured on the component T3 by means of a further connection element 54c. The position of the second clamping element is provided relative to the first clamping element 52a or 62a or 72a so that the flexible band can be guided between these. The second clamping element 52b or 62b or 72b can additionally be provided for securing a further flexible band 51b or 61b or 71b of the same joint. Thereby, the course or path thereof is then opposite in relation to the center axis A and preferably symmetrical to the course or path of the band secured on the first clamping element.
At least two flexible bands extending oppositely in relation to a center axis A of the component T4 are arranged according to the invention, whereby the at least two bands are secured on at least two clamping elements extending transversely to the longitudinal direction of the components T3, T4. Also more than two, thus for example four clamping elements can be used for the securing of the at least two bands. These are then arranged offset relative to one another in a manner transversely to the longitudinal direction R1 of the components T3, T4 in such a manner, so that the flexible bands can be laid around the contact surfaces of the respective clamping elements while lying next to one another and extending crossed-over in the free joint area FG.
An alternative course or path of a flexible band 61a according to the invention is illustrated in the
In the embodiment of
A contact element can be arranged according to the invention on the side of the pressure element 15 facing toward the first component T4. This contact element can comprise a sliding layer, that is positioned on the bearing support surface 15a of the pressure element that faces toward the first component T4. Furthermore, the side or surface of the contact element facing toward the first component T4 can comprise a larger radius of curvature than the surface of the first component T4 facing this surface, in order to reduce arising compressive stresses.
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Jun 02 2009 | Airbus Deutschland GmbH | Airbus Operations GmbH | CHANGE OF NAME SEE DOCUMENT FOR DETAILS | 025751 | /0606 |
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